Answer
$3x^{2}(3x+4)(5x+4)$
Work Step by Step
We factor by grouping to obtain:
$3x^{2}(3x+4)^{2}+x^{3}* 2(3x+4)* 3
=3x^{2}(3x+4)^{2}+3x^2*2x(3x+4)
=3x^{2}(3x+4)[(3x+4)+2x]
=3x^{2}(3x+4)(3x+4+2x)
=3x^{2}(3x+4)(5x+4)$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter R - Section R.5 - Factoring Polynomials - R.5 Exercises - Page 58: 134
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